Honeywell V8944N1020U Two Stage Gas Valve 1-1/4 in Npt

Product Description

The HONEYWELL V8944N1020U is a two-stage pressure regulating diaphragm gas valve designed for commercial and residential heating equipment. It provides rapid opening operation and regulates gas flow in two stages, allowing for more controlled heat output compared to single-stage valves. The valve accepts a 1-1/4 inch NPT pipe connection and is rated for a maximum inlet pressure of 0.5 psi. Factory configured for natural gas service, this valve is typically installed by licensed HVAC technicians and plumbers during new equipment installation or valve replacement on gas-fired heating systems.

This valve is suited for a range of commercial and light industrial heating applications including boilers, unit heaters, duct furnaces, makeup air units, and rooftop heaters. The two-stage pressure regulation design supports systems where staged firing is required to match heat output to load demand. It is a direct-fit replacement option for gas valve service on compatible equipment in the V4944 and V8944 series.

Key Features

• Two-stage pressure regulating operation for staged heat output control
• Rapid opening valve action for responsive ignition sequencing
• 1-1/4 inch NPT inlet and outlet connections for standard pipe installation
• Rated for natural gas service at a maximum inlet pressure of 0.5 psi
• Diaphragm-type regulator for consistent downstream pressure control
• Suitable for boilers, unit heaters, duct furnaces, makeup air units, and rooftop heaters

Compatibility

Compatible with equipment in the V4944B, V4944L, V4944N, V8944B, V8944C, V8944L, and V8944N series gas valve applications, including boilers, unit heaters, duct furnaces, makeup air units, and rooftop heaters configured for natural gas service.

Installation Notes

Installation must be performed by a licensed HVAC technician or gas fitter in accordance with local codes and the IFGC. Shut off the manual gas supply and disconnect power to the equipment before removing the existing valve. Verify inlet pressure and gas type match the valve rating before commissioning. Do not over-tighten NPT fittings; use appropriate pipe thread sealant rated for gas service.

Technical Specifications

• Valve Type: Two Stage Pressure Regulating Diaphragm Gas Valve
• Opening Type: Rapid Opening
• Gas Type: Natural Gas
• Connection Size: 1-1/4 inches NPT
• Maximum Inlet Pressure: 0.5 psi

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: V8944N1020U